3. A geologist is trying to determine the e
relative age of rock layers in a certain area,
but he or she cannot rely only on the law of
superposition. Which clue will help the 20
geologist determine whether a rock layer
has been overturned? sc.7.E.6.3
A Igneous rock usually forms below
sedimentary rock.
B Rock layers erode at an average rate of
1.5 m per year.
ge
The largest sediment particles usually
are deposited near the bottom of a rock
layer.
D Metamorphic rocks are the lightest type
of rock, so they are located at the top of
a rock layer.
